2)濕度。黃瓜喜濕怕旱。一般要求土壤濕度為60%-70%,空氣濕度白天80%,夜間90%。如果土壤濕度達到60%-70%,空氣濕度在50%左右,也不致形成苦素;但當陰雨天多,空氣濕度超過80%時shi,在zai葉ye麵mian形xing成cheng水shui膜mo,幹gan擾rao了le氣qi體ti交jiao換huan,並bing對dui光guang產chan生sheng折zhe射she作zuo用yong,就jiu有you利li於yu形xing成cheng苦ku素su。在zai生sheng產chan中zhong,要yao注zhu意yi進jin行xing通tong風feng,一yi方fang麵mian可ke增zeng加jia二er氧yang化hua碳tan的de含han量liang,另ling一yi方fang麵mian可ke降jiang低di室shi內nei濕shi度du,避bi免mian在zai葉ye麵mian形xing成cheng水shui膜mo和he對dui光guang產chan生sheng折zhe射she而er導dao致zhi苦ku素su增zeng加jia。
3)光照。在生產管理中,補光與控溫控濕一樣重要。要做到合理密植,每畝不超過4 200株zhu,特te別bie是shi陰yin天tian,人ren工gong補bu光guang十shi分fen重zhong要yao。溫wen室shi內nei掛gua反fan光guang膜mo是shi一yi條tiao有you效xiao的de增zeng光guang途tu徑jing。陰yin天tian時shi在zai棚peng膜mo沒mei有you冰bing花hua的de前qian提ti下xia,要yao保bao證zheng正zheng常chang揭jie苫shan,以yi增zeng加jia散san射she光guang的de吸xi收shou。
4)feiliao。helishifeiketiaozhenghuangguazhizhushenglijichu,cujinshengchangfayu。danyishifei,tebieshidansuchaoliangjiyiyoufakusudexingcheng。huangguashiyizhonggenxiqianxufeiliangjiaoduodeshucai,zaishengchanguochengzhong,chushiyongzugoudeyoujifeiwai,wujifeiyingshaoshiqinshi,qiepeibiyaoheli,yibanrenweiN:P以l:0.5較為合適。在施用方法上,進入盛果期結合澆水進行追肥,每次畝施6~7 kg。在幼苗期噴施0.3%的硫酸亞鐵1~2次,可增強植株同化功能。
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